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BottomNavigationViewEx

An android lib for enhancing BottomNavigationView.

About Us

Features

Method	Description
enableAnimation	Enable or disable click item animation(text scale and icon move animation in no item shifting mode). Default true.
enableItemShiftingMode	Enable the shifting mode for each item. It will has a shift animation for item if true. Otherwise the item text always be shown. Default true when item count > 3.
enableShiftingMode	Enable the shifting mode for navigation. It will has a shift animation if true. Otherwise all items are the same width. Default true when item count > 3.
getBottomNavigationItemView	Get private mButton in mMenuView at position
getBottomNavigationItemViews	Get private mButtons in mMenuView
getCurrentItem	Get the current checked item position.
getIconAt	Get icon at position.
getItemCount	Get item count.
getItemHeight	Get item height.
getLargeLabelAt	Get large label at position. Each item has tow label, one is large, another is small.
getSmallLabelAt	Get small label at position. Each item has tow label, one is large, another is small.
getMenuItemPosition	Get menu item position in menu. Return position if success, -1 otherwise.
getOnNavigationItemSelectedListener	Get OnNavigationItemSelectedListener.
setCurrentItem	Set the current checked item.
setIconSize	Set all item ImageView size.
setIconSizeAt	Set all item ImageView size which at position.
setIconVisibility	Change the visibility of icon.
setItemHeight	Set menu item height.
setLargeTextSize	Set all item large TextView size. Each item has tow label, one is large, another is small. Small one will be shown when item state is normal. Large one will be shown when item checked.
setSmallTextSize	Set all item small TextView size. Each item has tow label, one is large, another is small. Small one will be shown when item state is normal. Large one will be shown when item checked.
setTextSize	Set all item large and small TextView size.
setTextVisibility	Change the visibility of text.
setTypeface	set Typeface for all item TextView.
setupWithViewPager	This method will link the given ViewPager and this BottomNavigationViewEx together so that changes in one are automatically reflected in the other. This includes scroll state changes and clicks.

Example

Style

With ViewPager

Add ViewBadger

Adding to project

Sdk Version

compileSdkVersion >= 25

Importing to project

Example for Gradle:

Step 1. Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

Step 2. Add the dependency

compile 'com.github.ittianyu:BottomNavigationViewEx:1.1.7'

Manual:

Downloading BottomNavigationViewEx.java and copying it to you project。

Getting started

Adding a custom widget in xml :

<com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx
    android:id="@+id/bnve"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/colorPrimary"
    app:itemIconTint="@color/selector_item_color"
    app:itemTextColor="@color/selector_item_color"
    app:menu="@menu/menu_navigation_with_view_pager" />

Binding view in Activity:

BottomNavigationViewEx bnve = (BottomNavigationViewEx) findViewById(R.id.bnve);

Disable all animations

bnve.enableAnimation(false);
bnve.enableShiftingMode(false);
bnve.enableItemShiftingMode(false);

Custom text and icon size

bnve.setIconSize(widthDp, heightDp);
bnve.setTextSize(sp);

Binding with ViewPager

// set adapter
adapter = new VpAdapter(getSupportFragmentManager(), fragments);
bind.vp.setAdapter(adapter);

// binding with ViewPager
bind.bnve.setupWithViewPager(bind.vp);

Other usage in BottomNavigationViewEx

You can see the demo.

Usage in BottomNavigationView

Other usage is the same as official BottomNavigationView. You can click here for detail.

ProGuard

If you are using ProGuard you might need to add the following option:

-keep public class android.support.design.widget.BottomNavigationView { *; }
-keep public class android.support.design.internal.BottomNavigationMenuView { *; }
-keep public class android.support.design.internal.BottomNavigationPresenter { *; }
-keep public class android.support.design.internal.BottomNavigationItemView { *; }

References

The lib is based on BottomNavigationView in Support Library 25 design.

I found it was inflexible when I try in demo. For example, I can't change the current checked item by code. So I write a class extends it to provide some useful method.

You no need to worry about stability. Because I minimise modifying by reflecting.

Thanks

Thanks for Adrián Mouly.

License

MIT License

Copyright (c) 2017 ittianyu

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

----------

BottomNavigationViewEx

一个增强BottomNavigationView的安卓库。

关于我们

功能

methods	description
enableAnimation	开启或关闭点击动画(文字放大效果和图片移动效果)。 默认为 true.
enableItemShiftingMode	开始或关闭子菜单位移模式。 如果为 true，除了当前选中项，其他项的文本将会隐藏。 当菜单数大于3时，默认为 true。
enableShiftingMode	开始或关闭导航条位移模式。如果为 true，选中项和其他项的宽度不一样。当菜单数大于3时，默认为 true。
getBottomNavigationItemView	获取位于 position 的私有成员变量 mButton。
getBottomNavigationItemViews	获取私有成员变量 mButtons。
getCurrentItem	获取当前选中项的索引。
getIconAt	获取位于 position 的图片。
getItemCount	获取子项个数。
getItemHeight	获取菜单高度。
getLargeLabelAt	获取位于 position 的大标签. 每个子项包含两个标签，一个大的，一个小的。
getSmallLabelAt	获取位于 position 的小标签. 每个子项包含两个标签，一个大的，一个小的。
getMenuItemPosition	获取子菜单的索引。如果找不到，返回 -1。
getOnNavigationItemSelectedListener	获取 OnNavigationItemSelectedListener。
setCurrentItem	设置当前选中项。
setIconSize	设置所有的子项图标大小。
setIconSizeAt	设置位于 position 的图标的大小。
setIconVisibility	设置图片可见性。
setItemHeight	设置子项高度。
setLargeTextSize	设置所有子项的大标签文本大小。每个子项有两个标签，一个大的，一个小的。当子项未选中时，显示小标签；选中时，显示大标签。
setSmallTextSize	设置所有子项的小标签文本大小。每个子项有两个标签，一个大的，一个小的。当子项未选中时，显示小标签；选中时，显示大标签。
setTextSize	设置所有子项的大和小标签文本大小。
setTextVisibility	设置文本可见性。
setTypeface	设置所有子项的 TextView 字体
setupWithViewPager	和 ViewPager 绑定，当 任何一个选中项改变时，都会自动改变另一项。

例子

样式

和 ViewPager 一起使用

带数字的小红圈

加入工程

Sdk 版本

compileSdkVersion >= 25

导入本库

Gradle例子:

步骤 1. 在工程根目录的 build.gradle 最后添加如下代码:

allprojects {
	repositories {
		...
		maven { url "https://jitpack.io" }
	}
}

步骤 2. 添加依赖

compile 'com.github.ittianyu:BottomNavigationViewEx:1.1.7'

手动导入:

下载文件 BottomNavigationViewEx.java 并复制到你的工程中。

开始使用

在 xml 布局中添加自定义控件:

<com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx
    android:id="@+id/bnve"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/colorPrimary"
    app:itemIconTint="@color/selector_item_color"
    app:itemTextColor="@color/selector_item_color"
    app:menu="@menu/menu_navigation_with_view_pager" />

在 Activity 中绑定控件:

BottomNavigationViewEx bnve = (BottomNavigationViewEx) findViewById(R.id.bnve);

禁止所有动画效果

bnve.enableAnimation(false);
bnve.enableShiftingMode(false);
bnve.enableItemShiftingMode(false);

自定义图标和文本大小

bnve.setIconSize(widthDp, heightDp);
bnve.setTextSize(sp);

和 ViewPager 绑定####

// set adapter
adapter = new VpAdapter(getSupportFragmentManager(), fragments);
bind.vp.setAdapter(adapter);

// binding with ViewPager
bind.bnve.setupWithViewPager(bind.vp);

其他 BottomNavigationViewEx 的用法

请参考demo。

其他 BottomNavigationView 的用法

其他用法和官方 BottomNavigationView 一样。 详情点击这里

混淆

如果你启用了 ProGuard，那你应该加上以下混淆代码:

-keep public class android.support.design.widget.BottomNavigationView { *; }
-keep public class android.support.design.internal.BottomNavigationMenuView { *; }
-keep public class android.support.design.internal.BottomNavigationPresenter { *; }
-keep public class android.support.design.internal.BottomNavigationItemView { *; }

来源

本库修改自安卓官方 Support Library 25 design 中的 BottomNavigationView。

我在尝试使用官方的库时，发现缺少灵活性。比如官方并没有提供切换当前选中项的方法。所以我在此基础上包装了一层，对外公开了一些方法。

你完全没有必要担心库的稳定性，因为我是使用反射对父类进行最小限度的修改。

致谢

感谢 Adrián Mouly.

授权

MIT License

Copyright (c) 2017 ittianyu

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.